PowerShell Plugin assumes Windows PowerShell registry keys to exist causing remoting to not work when they are absent

[adityapatwardhan]

When Windows PowerShell is not present on the device, New-PSSession fails as the plugin needs the following registry keys to exist. The values from the reg keys are not used anymore. So as a work around creating the reg keys unblocks New-PSSession

    Hive: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PowerShell\3

Name                           Property
----                           --------
PowerShellEngine               ApplicationBase       : C:\Windows\System32\WindowsPowerShell\v1.0
                               PSPluginWkrModuleName : C:\Windows\System32\WindowsPowerShell\v1.0\system.management.automation.dll
                               RuntimeVersion        : v4.0.30319
                               PowerShellVersion     : 5.1.19516.1002

[adityapatwardhan]

Closed by #35